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Ero•Scan - OAE Test System Visual Evaluation Middle Ear Evaluation Ideal for... Ear Canal Eardrum Tympanometric Evaluation Cochlea OAE Evaluation • Physicians • Pediatricians • Birth-to-3 Programs • School & Head Start Programs • Nurseries Otoacoustic Emissions (OAEs) Otoacoustic emissions are sounds that are produced by the cochlea (outer hair cells) and can be measured in the ear canal. When sound passing through the ear canal reaches the cochlea, the vibration stimulates thousands of tiny hair cells. This creates a byproduct that can be detected and measured: otoacoustic emissions. OAEs only occur in a normal cochlea with normal hearing sensitivity. If there is damage to the outer hair cells, which produces hearing loss, then OAEs will not be present. In general, OAEs will be present if hearing is at 30 dB or better. PASS test results mean OAEs were detected. If there is damage to the outer hair cells producing a mild hearing loss, OAEs may not be present. The test result is REFER and the patient may be at risk for possible communication difficulties and can benefit from further diagnostic assessment. www.maico-diagnostics.com
Physicians Otoacoustic emissions testing is an ideal tool for hearing screening because it can quickly identify a possible hearing loss and signal referral for more comprehensive testing. Pediatricians Hearing loss is not always identified by newborn screening. Pediatricians are the first professionals the parents approach with concerns about their child’s hearing. Since hospital-based and private practice pediatricians screen infants and young children for hearing loss and middle ear disorders, incorporating OAEs into this routine testing can be greatly beneficial. Head Start and School Screening The Maico EroScan is an effective tool for Head Start and school programs as a means to document hearing testing as well as screen large numbers of children very quickly. Since there is no need for a behavioral response from the patient, it is easy to test ESL and special needs children. Utilizing OAEs • Follow-up infants from nursery screening and well-baby checks • Identify and monitor middle-ear pathology such as otitis media • Use with tympanometry to rule out middle ear pathology • Monitor cochlear function in those who are taking medication that is potentially ototoxic • Differentiate between organic and non-organic hearing loss • Identify educationally significant hearing loss • Detect late-onset hearing loss This procedure is also beneficial in assessing children that cannot be tested by conventional means. For example, pure tone audiometry requires a response from the child which may be an unrealistic expectation and time-consuming.
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